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Here I am looking at that most recent version of the wrestlers composition. It's called Matching bulb.psd and I know I keep tweaking this composition, but I'm sitting here looking at that glow and it's just not bright enough. It matches the scene, but it needs a little bit of extra heft. So I've got the glow layer selected here inside Layers panel and I'm going to switch to my Brush tool either by clicking on it or pressing the B key and I'll right-click with that tool in order to bring up my settings. I've got a Size value of 80 pixels of a Hardness of 0%.
My foreground and background colors are set to their defaults, black and white. So I'll press the X key in order to change the foreground color to White and then I'll just click right there in the center of the light bulb in order to create a little bit of a shimmer. That's all it takes. So again these blend modes can be very powerful and flexible when combined with the right luminance levels. Well, that's not what this exercise is about. What I want to do is show you how you can change the behavior of a very simple Invert Adjustment layer using the Color and Luminosity blend modes. So I'm going to twirl close my lightbulb group and I'm going to turn it off.
I'll click on the wrestlers layer, because I really don't want it to set to this Color Dodge mode. I'm going to advance it to the Linear Dodge mode by pressing Shift+, but that didn't do anything except for change the mode assigned to my brush right here. So notice that my Brush mode has now changed from Normal, which it was before to Dissolve. That's no good. So I need to press Shift+Alt+N or Shift+Option+N on the Mac to change it back to Normal. So those keyboard shortcuts work just as well when the Brush tool or one of the other painting tools are selected.
You just have to bear in mind they're not affecting the layer in that case. They're affecting the tool itself. Now press the M key to switch back to my Marquee tool and now I'll press Shift+ and that should advance me to the Linear Dodge mode where this layer is concerned. So if I twirl up in the future stuff group and scroll to the bottom of the layers list, you can see that I've got this bright to dark layer and you may recall that's an Invert Adjustment layer. I'll go ahead and click on it to select it. Now, currently what's happening is we've got this light orange parchment in the background.
So I've just turned off the Invert Adjustment layer for a moment. When I turn the layer back on why we're inverting the layer on a channel by channel basis, which means that we're inverting the overall luminance of the parchment in the background, but we're also inverting its color scheme. So it's changing from a bright orange to a deep blue. Let's say we don't want that. Let's say we just want to invert the luminance and leave the color alone. Why I go ahead and select this Invert Adjustment layer and I change its Blend mode to Luminosity by pressing its keyboard shortcut which is Shift+Alt+Y or Shift+Option+Y on the Mac.
Another way to get there by the way if I press Shift+Alt+N or Shift+Option+N on the Mac, because I'm at the top of the blend mode list, if I press Shift-, I will cycle back to the bottom of the list and also like the Luminosity mode. We get this effect right here. So we're keeping the orange color scheme, but we're inverting the luminance of that parchment. So let's say we want it the other way around. We want to invert just the color and leave the luminance alone. Why then I would press Shift+Alt+C or Shift+Option+C on the Mac in order to assign the Color mode.
That of course doesn't work with our current wrestlers. So I'll scroll back up the list, I'll turn off this couple bright invert layer and I'll select the wrestlers and I'll change them from Linear Dodge to Linear Burn by pressing Shift+Alt+A or Shift+Option+A on the Mac. So blend modes don't have to be hard, they can be exceedingly simple as I think even these two would agree.
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